Induction welding equipment and method for thermoplastic resin matrix composite with internal electromagnetic material

Abstract

The invention provides induction welding equipment and method for a thermoplastic resin matrix composite with an internal electromagnetic material, belongs to the field of material forming and manufacturing and solves the problems about induction welding materials and equipment. Innovations are as follows: in terms of the material, a lamination forming process is adopted for producing the thermoplastic resin matrix composite, an iron-based ferromagnetic material is added in a lamination process, and a composite welding piece is formed; in terms of the welding equipment, the induction welding equipment is improved, axial application of pressure is realized, the distance with a joint is controlled as required, and efficient induction welding is realized. The welding method comprises the steps as follows: firstly, pre-pressure is applied to a to-be-welded composite by pressurizing equipment, then an induction coil is connected, and an electromagnetic field is produced to heat the internalelectromagnetic material. The induction welding equipment and method have the advantages that the requirement of induction welding for size of a to-be-welded object is reduced, welding quality and efficiency are improved, energy consumption is reduced, the welding equipment is simplified, and one-time investment of the equipment and production cost are reduced.

Description

technical field [0001] The invention relates to a thermoplastic resin-based composite material induction welding device and method, in particular to a thermoplastic resin-based composite material induction welding device and method with built-in electromagnetic materials, belonging to the field of material molding and manufacturing. Background technique [0002] With the continuous development of automobile manufacturing, shipbuilding, aerospace and other fields, the requirements for reducing structural weight, saving economic costs, and ensuring product safety performance are getting higher and higher, which makes the concept of "lightweight and lightweight" come into being, namely While ensuring the structural performance, it is changed from complex to simple, from heavy to light. By using high-strength resin and other materials instead of steel, the weight can be reduced as much as possible under the premise of satisfying structural toughness and fatigue resistance. The ...

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Problems solved by technology

[0003] Induction welding is an effective method for joining thermoplastic resin-based composite materials. However, the materials and induction welding equipment currently used for induction welding have the following problems: First, in terms of the materials to be welded, the induction welding method needs to add implants at the interface of the materials to be welded. Implants will eventually remain in the weld, reducing joint strength and fatigue performance; in terms of induction welding equipment, the traditional induction welding equipment is an external induction coil, and the pressure is not applied in the axial direction, which limits the The shape and size of the object affect the welding quality

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